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    • 1. 发明授权
    • Optically active phosphorous compounds
    • 光活性磷化合物
    • US5516944A
    • 1996-05-14
    • US315791
    • 1994-09-30
    • Emil A. BrogerMarco CereghettiAlain Rageot
    • Emil A. BrogerMarco CereghettiAlain Rageot
    • C07C67/31C07F9/50C07F9/6568C07F15/00C07F9/02
    • C07F15/0053C07C67/31C07F9/5027C07F9/65683
    • The present invention is concerned with novel optically active phosphorus compounds of the general formula ##STR1## wherein R and R.sup.1 each independently signify hydroxy, a protected hydroxy group, lower alkyl or lower alkoxy andR.sup.2 to R.sup.5 each independently signify alkyl with 3 to 7 carbon atoms, cycloalkyl or aryl or R.sup.2 and R.sup.3 or R.sup.4 and R.sup.5 together with the phosphorus form a group of the formula ##STR2## wherein R2 and R3 are different when R4 and R5 are the same, and R4 and R5 are different when R2 and R3 are the same,the manufacture of such compounds, their use for enantioselective reactions, such as, e.g., asymmetric hydrogenations, enantioselective hydrogen displacements in prochiral allylic systems and the like, as well as complexes of the compounds of formula I with Group VIII metals.
    • 本发明涉及通式为“IMAGE”I的新型光学活性磷化合物,其中R和R 1各自独立地表示羟基,保护的羟基,低级烷基或低级烷氧基,R2至R5各自独立地表示具有3至7个的烷基 碳原子,环烷基或芳基或R2和R3或R4和R5与磷一起形成下式的基团:其中当R 4和R 5相同时,R 2和R 3不同,R 4和R 5在R 2和 R3相同,制备这些化合物,它们用于对映选择性反应,例如不对称氢化,前手性烯丙基体系中的对映选择性氢置换等,以及式I化合物与VIII族金属的络合物 。